[mrtg] no graph (.png) in mrtg generated page

[buerger at a1.net]

hello,

i hope you can help me with my mrtg problems:
i used mrtg to monitor the incomming and the outgoing traffic of my
proxy server (squid). (and it worked very fine!!!! ;)
now i had to move squid to another box, and there i have some problems.
the graph´s (.png) in the mrtg generated page are empty! and i couldn´t
find out whrere the failure is. 

here some further informations:
i use mrtg with SuseLinux8.0. ucdsnmp is installed per default.
i have also checked the cronjob, yet. it works correctly, the html page
is generated every 5 minutes (only the png graphs are empty)
the config file is build with the cfgmaker:

proxy:/usr/local/httpd/htdocs/mrtg # cat /etc/mrtg.cfg
# Created by
# /usr/bin/cfgmaker --interfaces --output
/usr/local/httpd/htdocs/mrtg/mrtg.cfg --global 'WorkDir:
/usr/local/httpd/htdocs/mrtg' public at proxy
WorkDir: /usr/local/httpd/htdocs/mrtg
Target[proxy_2]: 2:public at localhost
SetEnv[proxy_2]: MRTG_INT_IP="10.10.18.33" MRTG_INT_DESCR="eth0"
MaxBytes[proxy_2]: 1250000
Title[proxy_2]: Traffic Analysis for proxy.mydomain.co.at
PageTop[proxy_2]: <H1>Traffic Analysis </H1>
<TABLE>
<TR><TD>System:</TD> <TD>proxy </TD></TR>
<TR><TD>Maintainer:</TD> <TD></TD></TR>
<TR><TD>Description:</TD><TD>eth0 (10/100Mbit) </TD></TR>
<TR><TD>ifType:</TD> <TD>ethernetCsmacd (6)</TD></TR>
<TR><TD>ifName:</TD> <TD>eth0 </TD></TR>
<TR><TD>Max Speed:</TD> <TD>1250.0 kBytes/s</TD></TR>
<TR><TD>Ip:</TD> <TD>10.10.18.33 (proxy.mydomain.co.at)</TD></TR>
</TABLE>
Suppress[proxy01_2]: y
LegendI[proxy01_2]: Traffic In
LegendO[proxy01_2]: Traffic Out
Legend1[proxy01_2]: Traffic In
Legend2[proxy01_2]: Traffic Out
YLegend[proxy01_2]: per minute
ShortLegend[proxy01_2]: b/min
#kMG[proxy01_2]: k,M,G,T
kilo[proxy01_2]: 1024
Options[proxy01_2]: perminute
XSize[proxy01_2]: 450
YSize[proxy01_2]: 110
#XZoom[proxy01_2]: 1.0
#YZoom[proxy01_2]: 1.1


i hope you have time and enough information to help me!
thank you in advance!
manfred bürger





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